EAS Publications Series
Volume 40, 20103rd ARENA Conference: An Astronomical Observatory at CONCORDIA (Dome C, Antarctica)
|Page(s)||115 - 118|
|Published online||23 December 2009|
L. Spinoglio and N. Epchtein (eds)
EAS Publications Series, 40 (2010) 115-118
Studying the vertical extent of the ground layer turbulence using sonic-anemometers
California Institute of Technology, 1200 E. California Blvd, Pasadena, CA 91125, USA
2 Laboratoire Fizeau, Université de Nice Sophia Antipolis, 06108 Nice Cedex 2, France
3 University of New South Wales, 2052, Sydney, NSW, Australia
The optical turbulence above Dome C in winter is mainly concentrated in the first tens of meters above the ground. The properties of this so-called surface layer were investigated during the last two winterover by a set of sonics anemometers placed on a 45 m high tower. These anemometers provide measurements of the temperature and the wind speed vector. The sampling rate of 10 Hz allows to derivate the refractive index structure constant Cn2. We report here the first analysis of these data.
© EAS, EDP Sciences, 2010
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